NESA NHP1A 1-CH IR Stereo Wireless Headphone<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>R-Ch. 2.8 MHzL-Ch. 2.3 MHz</li><li>40mm Mylar Cone32 ohms Impedance</li><li>8 Meter Effective RangeAAA Battery Power Source</li></ul></div><img src="http://ecx.images-amazon.com/images/I/313kMoOlFaL.jpg" noproxy>